CAS: 1435-53-6; 2,4-Dibromo-1-Fluorobenzene

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1435-54-7 28342-75-8 1072-85-1

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CAS号462-06-6 氟苯 | CAS号460-00-4 对氟溴苯 | CAS号7726-95-6 溴素 | CAS号112204-57-6 5-溴-2-氟苯硼酸 | CAS号425379-21-1 2-(5-bromo-2-fl...

氟苯置于溴,铁粉体系中,化学反应生成2,4-二溴-1-氟苯
参考文献:加压型的一些氟化胺
标题:加压型的一些氟化胺
摘要:从反应获得的2-甲基-2-羧基-1,2,3,4-四氢萘-1-丁酸的二甲酯是液体.从 5.52 克.得到4.56克丙酸酯.(75%) 的产品在 0.5 毫米处"升华"了 190-200".将四分之六的上述酯在氮气氛中通过甲醇钠以与前述环化完全相同的方式进行环化,得到 11-甲基-1-酮基-2-碳甲氧基-1,2,3,4,9,10,11,12-八氢菲(X),其在室温下为液体但在约10'静置时固化.在 0.5 毫米处以 170-180°"升华"的环化产物.没有得到分析纯.将上述获得的环化酮酯在氮气氛中以前述方式水解,得到1.9G.甲基酮八氢菲的(来自丁酸酯的收率为 59%)在 100-150 英寸处"升华"到 0.6 毫米.产物为液体,其获得的不是分析纯的.Xi的缩氨基脲形成小的无色晶体;Mp 210.5-212.6',在预热浴中分解.肛门.计算.对于 Cleh210N8:N,15.5,发现:N,15
Doi:10.1021/ja01847A069

专利信息

专利号:US-7615300-B2
优先权日:2005-08-30
标 题 :Development of novel proton-conductive polymers for proton exchange membrane fuel cell (PEMFC) technology
发明人：BAE CHULSUNG
权利人:REGENTS UNIVERSITY AND COMMUNI
摘要:New thermally and chemically stable sulfonic acid-containing polymers are synthesized via post-sulfonation of aromatic polymers. These new polymers provide unique benefits to proton exchange membrane fuel cell technology (“PEMFCâ€?). As a sulfonic acid moiety can be easily installed into an aromatic ring via electrophilic sulfonation, even in the presence of an electron-withdrawing substituent such as —F, rigid polymers consisting of aromatic rings at either the side chain or main chain can be prepared with a wide range of substituents and flexibility in properties. Novel synthetic procedures are provided for synthesis of the polymers.

专利号:US-6828466-B2
优先权日:2002-07-19
标题:Process for the synthesis of phenols from arenes
发明人：MALECZKA JR ROBERT E; SMITH III MILTON R; HOLMES DANIEL; SHI FENG
权利人:UNIV MICHIGAN STATE
摘要:A process to synthesize substituted phenols such as those of the general formula RR'R''Ar(OH) wherein R, R', and R'' are each independently hydrogen or any group which does not interfere in the process for synthesizing the substituted phenol including, but not limited to, halo, alkyl, alkoxy, carboxylic ester, amine, amide; and Ar is any variety of aryl or hetroaryl by means of oxidation of substituted arylboronic esters is described. In particular, a metal-catalyzed C-H activation/borylation reaction is described, which when followed by direct oxidation in a single or separate reaction vessel affords phenols without the need for any intermediate manipulations. More particularly, a process wherein Ir-catalyzed borylation of arenes using pinacolborane (HBPin) followed by oxidation of the intermediate arylboronic ester by OXONE is described.

专利号:US-2004030197-A1
优先权日:2002-07-19
标 题 :Process for the synthesis of phenols from arenes